Cotuit
Massachusetts, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Cotuit, MA

Ocean temperature

In Cotuit, Massachusetts, the average seawater temperature in December is 46°F (7.8°C).
Note: At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

Daylight

The month with the shortest days is December, with an average of 9.2h of daylight.

What is the ocean temperature in December in Cotuit?

In December, the average ocean temperature is 46°F (7.8°C). Swimming in 46°F (7.8°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

What is the month with the shortest days in Cotuit?

The month with the shortest days in Cotuit, Massachusetts, is December, with an average of 9.2h of daylight.

How many hours of daylight does Cotuit have in December?

In Cotuit, Massachusetts, the average length of the day in December is 9.2h.
Average sea temperature in December - Cotuit, MA
  • Average sea temperature in December: 46.1°F

The best month for swimming (with the highest average sea temperature) is August (67.5°F).
The coldest month (with the lowest average sea temperature) is March (39°F).

Average daylight in December - Cotuit, MA
  • Average daylight in December: 9.2h

The month with the longest days is June (Average daylight: 15.2h).
The month with shortest days is December (Average daylight: 9.2h).